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Q&A: Diagnosing Salinity Spikes

Q&A: Diagnosing Salinity Spikes

Q&A: Diagnosing Salinity Spikes The figure above shows a time series of salinity from a moored CTD. For most of the deployment, salinity showed frequent downward spikes, dropping from an expected range of 18-26 psu to near zero. Can you determine the cause?...

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Q&A: Erratic Profiles

Q&A: Erratic Profiles

November 2019 Newsletter The data above come from a profiling CTD, deployed in sea conditions that caused approximately 1-meter ship heave. Two things stick out – relatively unchanging salinity data during the downcast, and noisy data during the upcast (shown in light...

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Q&A: Sudden Increase in Salinity

Q&A: Sudden Increase in Salinity

November 2018 Newsletter The figure above originated from an SBE 37-SMP MicroCAT moored CTD deployed in shallow seawater. On day 38, the salinity data appears to jump from a near-zero value, steadily increasing until around day 43, where it stayed around 30psu. Nearby...

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Salinity Spikes: Sensor or Environment?

Salinity Spikes: Sensor or Environment?

These data show a subtle problem that is producing “fuzzy” salinity and oxygen data. While the overall shape of the profile appears reasonable, small spikes are present throughout the CTD cast. The black lines encompass a particularly strange spot where both salinity...

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Featured Posts

OCEANS 2022

Sea-Bird Scientific is excited to announce our exhibition at the OCEANS Conference in Virginia Beach, Virginia from October 17 - 20 this year. Don't forget to stop by and see us at booth #500. Want to reserve your spot? Register now here. From the organizers: "Global...

Ocean Optics 2022

Sea-Bird Scientific is excited to announce our exhibition at the Ocean Optics Conference in Quy Nhon, Binh Dinh, Vietnam, from October 2 - 7 this year.  Want to reserve your spot? Register now here. From the organizers: "Ocean Optics XXV will take place October 2–7,...

UG2 Workshop 2022

We are so excited to be part of the upcoming Underwater Glider Workshop located in Seattle, Washington. This event is facilitated by the Underwater User Group, an organization supported by the Consortium for Ocean Leadership and IOOS (Integrated Ocean Observing...

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